In this May 20, 2016, file photo, Vice President Joe Biden listens as President Barack Obama speaks to members of the media in the Oval Office at the White House in Washington Biden will bring together scientists, oncologists, donors and patients for a national conference on cancer research in Washington, the White House said May 24. Dubbed the “National Cancer Moonshot Summit,” the summit is scheduled for June 29 at Howard University, and the White House said it planned to organize dozens regional summits on the same day in communities far from the capital. (AP Photo/Andrew Harnik)
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